We're going to begin with the deadly and mysterious explosion that shattered a quiet indianapolis neighborhood. This is all that is left after the blast annihilated five homes, leaving dozens of others beyond repair. Abc's john schriffen is there with the latest. Good morning, john. Reporter: Josh, good morning. There is a large police presence as investigators try to figure out just how this happened. Right now, nothing has been ruled out, but investigators are puzzled. But so far there has been no sign of a gas leak in the neighborhood. This video shows a massive inferno sparked by the explosion that rocked this indianapolis neighborhood late saturday killing husband and wife deion and jennifer longworth, leaving seven others. Garage doors blown in. Windows blown in, houses leveled. Nothing left. Reporter: This morning, authorities are trying to figure out what touched off the blast which could be heard for miles sblp we can't speculate on what the cause of the blast was, whether natural gas or some other source. Reporter: Witnesses s it happened around 11:00 p.M., More than 100 firefighters responded to the scene as more than 200 residents quickly ran into nearby streets. It splintered my door. It was like a war zone. Doors what falling down, glass everywhere. Reporter: Officials say as much as 80 homes were affected. Estimates damage of $3.6 million. We saw the damage first hand. You can see there's bull dorzs out here. People are working trying to get everything cleaned up. What used to be five homes that are nothing more than rubble. And police still have not identified the victims but this morning the "indianapolis star" is reporting that the schools will open on a two-hour delay so the staff can figure out a way to tell their students that one of their teachers has died. Meanwhile, anger boiling over two weeks after hurricane sandy hit.

This transcript has been automatically generated and may not be 100% accurate.

Indianapolis Neighborhood Devastated by Explosion

John Schriffen reports the latest news surrounding deadly blast.

Superstorm Sandy: Fires, Gas Leaks in New Jersey

Terry Moran has the latest on dangers left behind by the storm.

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